>>716448145If Arceus has a horse pussy than that won't be a problem. You see, mares might straight up not want to breed with certain stallions, so to avoid getting fucked, they evolved to having the ability to control how tight their pussy is, to the point of it being water-tight if they so choose. Another thing about horse pussy is that the pleasure receptors are all accumulated on the entrance, instead of deeper in. What I'm trying to say is that even a small dick would still be able to pleasure Arceus, assuming she has the genitals I'm thinking of.